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Comment by 05

6 hours ago

Turns out using less engine bleed air is good for fuel economy, so now it's 50% recirculated HEPA filtered (which does nothing for the co2 contents) air.

2 comments

05

Reply

xattt  6 hours ago

How does this work for all-electric planes like the 787?

  • 05  5 hours ago

    [dead]

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